Flowmaster Muffler or Full system

[Centerfire]

Ok. just like most I'm keep buying into the add on performance parts.. Not Sure if they do any good.but hell sometimes I just got to do it..

So heres the question.. Just put a Flowmaster muffler on my H2 or go for a full system like the Corsa or Borla..

Has anyone seen any verified testing on the H2 or other 6.0 GM for the above comparision..

I have the AIrraid intake installed, the new Hypertech is sitting in my office waiting for me to get off my backside and instal.. Now I know I want a more throaty sound for the H2 ( but not heavy cabin rumble, must keep the wife off my back), so what is the general thoughts on these products.

Mike